Coffee Technology
Latest articles, industry insights and brewing guides
How to Steam Milk for Espresso Like a Pro
Master the steps to steam milk for espresso with perfect temperature, texture, and minimal noise using these professional barista techniques.
How Water, Grind, and Roast Affect Your Coffee
Learn how water quality, temperature, coffee origin, roast level, and grind size shape your brew’s flavor—backed by measurable brewing variables.
How to Reduce Coffee Astringency by Avoiding Tannin Over-Extraction
Prevent bitter, dry coffee by avoiding over-extraction of tannins. Use coarser grind, more coffee, lower temp (82–83°C) for smoother brew.
How to Clean Your Coffee Grinder Properly
Learn why cleaning your grinder regularly prevents stale flavors and how to remove coffee dust, oils, and silver skin buildup effectively.
How to Choose a Coffee Grinder to Preserve Freshness
Learn how to choose a coffee grinder that minimizes heat buildup and preserves aroma during grinding, with key insights on burr types and friction control.
How to Grind Coffee Without Producing Fine Powder
Avoid bitter, cloudy coffee by stopping fine coffee particles during grind. Here’s how to reduce fines and improve your brew.
How to Choose the Right Grind Size for Your Coffee Maker
Find the perfect grind size for your brewing method—espresso, pour-over, or French press—with this guide to matching coffee grind with equipment.
Why You Need a Coffee Tamper for Espresso
A coffee tamper ensures even extraction by creating a level, compact puck. Without it, water flows through weak spots, causing under- or over-extraction.
How to Choose Milk for Frothing in Specialty Coffee
Find out why milk choice matters for latte art—fat content, protein structure, and whether it’s fresh or reconstituted all affect foam stability.
How to Properly Dose and Tamp Espresso for Best Extraction
Learn why tamping and dosing espresso grounds is one of the hardest steps — and how to get 25-second extractions with ideal crema.
Espresso Grinding: Why Grind Size Matters
Find out the ideal espresso grind size, how it affects extraction, and why pre-ground coffee ruins your shot. Backed by Illy and practical data.
How to Blend Coffee for Great Espresso
Perfect espresso requires the right blend. Learn how to combine origins, roast levels, and ratios to craft balanced, flavorful shots.
How to Make Latte Art: Basics, Techniques and Common Styles
Learn the essentials of latte art: what affects its success, how to pour hearts and roses, and why crema and milk texture matter.
How to Judge Espresso Crema Color
Learn how espresso crema color reveals extraction quality—golden-brown is ideal, white means under-extracted, dark brown signals over-extraction.
How to Judge Espresso Crema Thickness
A quality espresso should have at least 0.5 oz of crema lasting 2 minutes. Learn what affects crema thickness and how to assess it.
How to Judge Espresso Flow Rate by Extraction Time
Espresso flavor depends heavily on flow rate. Learn the ideal 22–28 second range and how speed affects taste, texture, and extraction quality.
How Moka Pot Brewing Differs from Other Methods
Discover how grind size, water level, heating, and flame control make moka pot coffee unique—and stronger—than other brews.
How to Taste Coffee: The 7 Key Elements
Learn how to assess coffee by balancing acidity, bitterness, sweetness, body, and aroma while avoiding bitterness, astringency and off-flavors.
How to Grind Coffee Beans for the Best Flavor
Learn the key coffee grinding tips: match grind size to brew method, avoid friction heat, and aim for uniform particle size.
5 Essential Tips for Brewing with a Moka Pot
Learn how to properly use a moka pot for rich espresso-style coffee—avoid common mistakes and choose the right beans for best results.